Optical fiber time domain sensor networks
Award last edited on: 3/25/02

Sponsored Program
Awarding Agency
Total Award Amount
Award Phase
Solicitation Topic Code
Principal Investigator
Bernd D Zimmerman

Company Information

Fimod Corporation

Po Box 11192
Blacksburg, VA 24062
   (703) 552-9289
Location: Single
Congr. District: 09
County: Montgomery

Phase I

Contract Number: DAAH01-92-C-R121
Start Date: 1/23/92    Completed: 7/23/92
Phase I year
Phase I Amount
We propose an all-dielectric fiber optic time domain sensor network which allows quasi-distributed, real time strain, temperature, and pressure monitoring. The system provides fast data rates, provides low signal attenuation, offers immunity to corrosion and electromagnetic interference, and reduces networking complexity. The proposed fiber array is amenable to submersed and/or buried applications, and may operate over a wide temperature range. The sensors are based on time domain principles where parameters to be monitored are determined from changes in optical pulse time of flight. Novel fiber optic reentrant loop technology is proposed to allow unprecedented time domain measurement resolution. The proposed system offers extremely reliable, multi-parameter, quasi-distributed sensing capabilities. Commercial applications include plant environments, building safety, and quantitative non-destructive evaluation.

Phase II

Contract Number: ----------
Start Date: 00/00/00    Completed: 00/00/00
Phase II year
Phase II Amount